Remove `impl Foo for ..` in favor of `auto trait Foo`

No longer parse it.
Remove AutoTrait variant from AST and HIR.
Remove backwards compatibility lint.
Remove coherence checks, they make no sense for the new syntax.
Remove from rustdoc.

1 files changed, 0 insertions, 19 deletions

diff --git a/src/test/compile-fail/syntaxt-default-trait-impls.rs b/src/test/compile-fail/syntaxt-default-trait-impls.rs
deleted file mode 100644
index 45303cbf700..00000000000
--- a/src/test/compile-fail/syntaxt-default-trait-impls.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![feature(optin_builtin_traits)]
-
-trait MyAutoImpl {}
-
-#[allow(auto_impl)]
-impl<T> MyAutoImpl for .. {}
-//~^ ERROR auto trait implementations are not allowed to have generics
-
-fn main() {}